Depends. But in cases where there are real discrimination or conflicts between the races it is probably better to talk about it. And sometimes just to give people a better understanding and distinguish race from culture and situation

Racism began because society and the media spread the notion that one race or ethnicity is better than another. The best way to reduce racism is to spread the truth, which is that no one is better than another person due to differences in race and ethnicity. Also, a lot of the racism spread through the media is implicit. Having certain races or ethnicities appear in entertainment in only very specific stereotypical roles teaches and reinforces certain bigoted mindsets.

It's a pity you can't see it. There is no stopping racism. It's part of human nature. Not all exercise it but it's part of an evolutionary trait linked to competition for survival. There are other ways that society can advance but the racial divide is always going to be there.

I'm sorry, but that's just stupid. Political ideology has nothing to do with caring about race. There is an infinite amount of examples from all corners of the political spectrum of people playing identity politics.